Bandgap-Like Strong Fluorescence in Functionalized Carbon Nanoparticles

Quantum of solace: Fluorescent carbon dots (surface‐passivated carbon nanoparticles) are developed as an alternative to classical semiconductor quantum dots. Gel column chromatography afforded carbon dots with emission yields close to 60 %. Their optical properties resemble band‐gap transitions foun...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2010-07, Vol.49 (31), p.5310-5314
Main Authors: Wang, Xin, Cao, Li, Yang, Sheng-Tao, Lu, Fushen, Meziani, Mohammed J, Tian, Leilei, Sun, Katherine W, Bloodgood, Mathew A, Sun, Ya-Ping
Format: Article
Language:English
Subjects:
Carbon - chemistry
carbon particles
Fluorescence
nanoparticles
Nanoparticles - chemistry
Nanostructures
Nanotechnology - methods
optical imaging
Polyethylene Glycols - chemistry
Quantum Dots
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Summary:Quantum of solace: Fluorescent carbon dots (surface‐passivated carbon nanoparticles) are developed as an alternative to classical semiconductor quantum dots. Gel column chromatography afforded carbon dots with emission yields close to 60 %. Their optical properties resemble band‐gap transitions found in nanoscale semiconductors, thus suggesting that nanoscale carbon particles acquire essentially semiconductorlike characteristics.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201000982